.app {
  display: flex;
  flex-flow: row;
  border: 1px solid gray;
  .nav {
    width: 200px;
    padding: 10px;
    margin: 10px;
    border: 1px solid blue;
  }
  .content {
    flex: 1;
    padding: 10px;
    margin: 10px;
    border: 1px solid blueviolet;
  }
}
.navLink {
  color: blue;
  text-decoration: underline;
}
.selected {
  color: red;
}
